Have a look at a recent tutorial by Jama Jurabaev that shows different approaches to create a 360 panoramic work in Blender 2.8 with Grease Pencil.

“360 workflow in Blender is much more streamlined and powerful comparing to previous techniques I used to use in Photoshop or 3D-coat,” added the artist.

This way lets artist draw a 360 drawing without “using a sphere, which overall opens quite unique ways of combining drawing and 3D to create a complete 360 drawing”

Topics covered:

• Blender 2.8 Navigation
• Blender 2.8 Essentials
• Stroke Modes
• Setting up 360 workspaces in Blender
• Setting up HDRI grids
• Different methods on 360 drawing in Blender
• Creating a 360 drawing from scratch

Includes:

• Narrated video tutorials (2.4 hours)
• Timelapse making-of`s (31 minutes)
• Blender files
• 360 Grid

You can learn more here.

Get the tutorial